<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>svg-动画-圆</title>
</head>
<body>
	<svg width="400" height="400">
		<circle cx="200" cy="200" r="50" style="fill: #ff6600">
			<animate
				attributeName="r"
				from="50"
				values="50;80;50"
				begin="0s"
				dur="1s"
				fill="freeze"
				repeatCount="indefinite"
			/>
	<!--		<animate
				attributeName="fill-opacity"
				attributeType="CSS"
				values="1;0.6;1"
				begin="0s"
				dur="1s"
				repeatCount="indefinite">
				</animate> -->
		</circle>
	</svg>
</body>
</html>
